Question

A survey of 2000 doctors showed that an average of 3 out of 5 doctors is brand x aspirin. How many doctors use brand x aspirin

Answer 1

since, average of doctors using brand x aspirin is 3 out of 5

if we consider one part then one part will be equal to 3/5

total survey consists of 2000 doctors then to find the brand x aspirin we can use the unitary method that is multiply the total number by one part

2000 x 3/5= 400 x 3

= 1200

so, total 1200 doctors are using brand x aspirin